英语翻译3）在正常情况下,乙方保证在货物抵港后三日内完成清关工作.由于单证晚到、单证错误,乙方须准确记录延误原因、由此而产生的额外费用,通知甲方,在甲方确认后支付,并在清关开

Question

英语翻译
3） 在正常情况下,乙方保证在货物抵港后三日内完成清关工作.由于单证晚到、单证错误,乙方须准确记录延误原因、由此而产生的额外费用,通知甲方,在甲方确认后支付,并在清关开始日起三日内完成清关工作.由乙方自身疏忽而导致的清关延误和额外费用,由乙方自行承担.
In the normal condition,Party B guarantees to clear customs within three days after the goods arrive at the port.In case of delays caused by late arrival and mistakes of documents,Party B should record the exact reasons and the additional cost resulted from them and then notify Party A.After Party A has confirmed,Party B should pay the additional cost and complete the customs clearance within three days from the beginning day of the clearance.Party B is responsible for any delay of clearance and additional cost resulted from his own negligence.
使汉语译成英语，我自己翻译了。特别是“货物抵港后三日内完成清关工作“还有“清关开始日起三日内完成清关工作“，

Answer 1

Normally,Party B guarantees to clear goods wthin 3 days when the goods have arrived at the port.Party B must record the causation of delay by delay or mistaking of invoices correctly,the extra expenditure raised by,inform Party A,make payments after Party A confirmed,and,complete the clearance within in 3 days after the beginning.Party B is responsible for the result of delay in clearance and additional costs,as its negligence.